Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Sep 2014
Intraneural or Extraneural: Diagnostic Accuracy of Ultrasound Assessment for Localizing Low-Volume Injection.
When one is performing ultrasound-guided peripheral nerve blocks, it is common to inject a small amount of fluid to confirm correct placement of the needle tip. If an intraneural needle tip position is detected, the needle can then be repositioned to prevent injection of a large amount of local anesthetic into the nerve. However, it is unknown if anesthesiologists can accurately discriminate intraneural and extraneural injection of small volumes. Therefore, this study was conducted to determine the diagnostic accuracy of ultrasound assessment using a criterion standard and to compare experts and novices in ultrasound-guided regional anesthesia. ⋯ Discrimination of intraneural or extraneural needle tip position based on an injection of 0.5mL is possible, but even experts missed 1 of 6 intraneural injections. In novices, the sensitivity of assessment was significantly lower, highlighting the need for focused education.
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Reg Anesth Pain Med · Sep 2014
Comparative StudyAccuracy and consistency of modern elastomeric pumps.
Continuous peripheral nerve blockade has become a popular method of achieving postoperative analgesia for many surgical procedures. The safety and reliability of infusion pumps are dependent on their flow rate accuracy and consistency. ⋯ Several studies have investigated the accuracy of portable infusion pumps. Using methodology similar to that used by Ilfeld et al, we investigated the accuracy and consistency of several current elastomeric pumps.
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Reg Anesth Pain Med · Sep 2014
Development of an Ultrasound Phantom for Spinal Injections With 3-Dimensional Printing.
This report describes a method for producing anatomically detailed, low-cost ultrasound phantoms of the spine with 3-dimensional printing. An implementation that involves representing a portion of the lumbar spine and the ligamentum flavum with 2 different printing materials and the surrounding soft tissues with agar gel is presented. ⋯ Ultrasound phantoms that are derived directly from patient anatomy have strong potential as learning tools for ultrasound-guided spinal insertions, and they could be used as preprocedural planning tools in cases involving pathologies, implants, or abnormal anatomies. Three-dimensional printing is a promising method for producing low-cost phantoms with designs that can be readily shared across clinical institutions.
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Reg Anesth Pain Med · Sep 2014
ReviewPerioperative Research Fellowship: Planning, Implementation, Experience.
Perioperative outcomes research has gained widespread interest and is viewed as increasingly important among different specialties, including anesthesiology. Outcomes research studies serve to help in the adjustment of risk, allocation of resources, and formulation of hypotheses to guide future research. ⋯ This article was intended to describe the curriculum and implementation of the Perioperative Medicine and Regional Anesthesia Research Fellowship at the Hospital for Special Surgery. We also proposed a method to evaluate the success of a research fellowship curriculum.
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Reg Anesth Pain Med · Sep 2014
Randomized Controlled TrialPreoperative Fascia Iliaca Compartment Block for Positioning Patients With Hip Fractures for Central Nervous Blockade: A Randomized Trial.
Appropriate pain management may positively affect outcome following hip fractures. Positioning patients for spinal anesthesia (SA) can be extremely painful. Peripheral nerve blockades are gaining popularity in this setting. This prospective, randomized study compares the efficacy of fascia iliaca compartment block (FICB) to intravenous (IV) fentanyl for positioning hip fracture patients for SA. ⋯ Performing an FICB before positioning for SA provides superior pain management compared with IVFE administration, facilitates spinal performance, and yields satisfactory postoperative analgesia and wide patient acceptance, hence improving overall quality and efficiency of care.